Hekinan in October
Find out everything about the water temperature in Hekinan in October. Average, minimum and maximum recorded temperatures as well as daily temperature in October for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in October
Minimum:
68.9 °F
Average:
74.0 °F
Maximum:
80.8 °F
Sea water temperature in Hekinan in October
In the city of Hekinan, the month of October is a great time for swimming. The minimum recorded temperature during this month was 68.9°F on October 27, 2017, with an average temperature being 74.0°F and a maximum temperature reaching 80.8°F on October 2, 2024.
| Date | 10 years average | 2025 | 2024 |
|---|---|---|---|
| Oct 1 | 77.0°F | 76.1°F | 79.4°F |
| Oct 2 | 77.1°F | 76.8°F | 80.8°F |
| Oct 3 | 76.7°F | 76.4°F | 80.2°F |
| Oct 4 | 76.4°F | 75.9°F | 79.6°F |
| Oct 5 | 76.1°F | 75.5°F | 78.9°F |
| Oct 6 | 76.5°F | 77.8°F | 78.4°F |
| Oct 7 | 76.2°F | 77.1°F | 78.1°F |
| Oct 8 | 75.6°F | 75.4°F | 77.7°F |
| Oct 9 | 75.6°F | 76.7°F | 77.3°F |
| Oct 10 | 75.4°F | 77.0°F | 77.0°F |
| Oct 11 | 75.2°F | 76.5°F | 75.7°F |
| Oct 12 | 74.9°F | 76.0°F | 75.3°F |
| Oct 13 | 74.8°F | 77.0°F | 75.9°F |
| Oct 14 | 74.8°F | 76.1°F | 76.4°F |
| Oct 15 | 74.5°F | 75.7°F | 76.0°F |
| Oct 16 | 74.3°F | 74.4°F | 75.5°F |
| Oct 17 | 74.1°F | 75.2°F | 75.6°F |
| Oct 18 | 74.1°F | 74.6°F | 75.3°F |
| Oct 19 | 73.7°F | 74.3°F | 76.8°F |
| Oct 20 | 73.4°F | 75.1°F | 76.7°F |
| Oct 21 | 73.2°F | 74.6°F | 76.5°F |
| Oct 22 | 72.6°F | 74.0°F | 75.5°F |
| Oct 23 | 72.4°F | 73.5°F | 74.9°F |
| Oct 24 | 72.1°F | 71.7°F | 76.4°F |
| Oct 25 | 71.9°F | 71.3°F | 75.6°F |
| Oct 26 | 71.4°F | 71.0°F | 74.9°F |
| Oct 27 | 71.4°F | 72.4°F | 74.1°F |
| Oct 28 | 71.2°F | 71.1°F | 73.6°F |
| Oct 29 | 71.1°F | 71.1°F | 73.2°F |
| Oct 30 | 70.9°F | 70.1°F | 73.4°F |
| Oct 31 | 70.5°F | 69.8°F | 73.3°F |
In Hekinan, the months July through October offer comfortable swimming conditions, which amounts to 127 swimming days.
The warmest water in Hekinan was recorded on August 7, 2025, reaching a 88.2°F. While the coldest temperature occurred on February 16, 2018, dipping to 47.8°F. The average readings by season are 55.6°F in Winter, 60.5°F in Spring, 79.2°F in Summer, and 74.0°F in Autumn.
October's average temperature is a slight drop from September's average of 80.6°F. In November, the temperature is expected to decrease further, potentially averaging around 67.4°F.
